Point granted about spoilers. Given that there's a flag to recognize best practices and mutation wasn't excluded in the description, what other point are you trying to make?

I hate this pattern, but I decided to use it anyway, because, why not?

I think this is fine for an 8 kyu kata; there aren't any issues (at least at this time) and a lot of users have completed it. It seems like a moderator should releast this kata.

That's fair; what would we expect to happen for those test cases? Just returning "Hello" probably makes sense.

This one is close: https://www.codewars.com/kata/returning-strings

I think the suggestion about casing is a good one; if I understand you correctly, that would mean fixing the name if it's not uppercased (e.g. hello('george') would result in "Hello, George"

I retrained after reading your comment and I couldn't find what you were referring to.

Approved, thank you!

Haha, passes the test!

No tests I guess. Interesting.

Moderators... the issue between detecting an explicit vs. implicit NaN is a big problem. This kata needs to be fixed or 86'd.

I couldn't have said it better myself.

I agree, especially if the author is expecting the participant to know the difference between an implicit and explicit NaN.

It's the difference between an explicit NaN and implicit NaN. And I agree, this should definitely be called out in the instructions.